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In this Thursday, Oct. 11, 2012 photo a U.S. Coast Guard officer watches as a RHIB boat returns to the USS Underwood after participating in drug interdiction training exercises while patrolling in international waters near Panama. In the most expensive initiative in Latin America since the Cold War, the U.S. has militarized the battle against drug traffickers, spending more than $20 billion in the past decade. U.S. Army troops, Air Force pilots and Navy ships outfitted with Coast Guard counternarcotics teams are routinely deployed to chase, track and capture drug smugglers. (AP Photo/Dario Lopez-Mills)

In this Thursday, Oct. 11, 2012 photo a U.S. Coast Guard officer watches as a RHIB boat returns to the USS Underwood after participating in drug interdiction training exercises while patrolling in international waters near Panama. In the most expensive initiative in Latin America since the Cold War, the U.S. has militarized the battle against drug traffickers, spending more than $20 billion in the past decade. U.S. Army troops, Air Force pilots and Navy ships outfitted with Coast Guard counternarcotics teams are routinely deployed to chase, track and capture drug smugglers. (AP Photo/Dario Lopez-Mills)